TruePackager 2 介绍
True Packager 2 (TP2) 是 Linux/Unix 系统上的包管理系统，主要功能：
- Works on Linux, UNIX-like platforms and Windows
- Support for ‘namespaces’
- Support ‘preview’ installs
- Full installation logs kept/managed
- Atomic installation/removal of packages
- Intelligent in-place upgrades/downgrades
- Easy creation of packages
- ACL-based repository management
- Package install/remove and repository management audit log
- Packaging signing support (and optional enforcement)